Answer :
Final answer:
A boutonniere should be worn on the left side of the lapel, traditionally on a suit or tuxedo jacket, positioned above the heart and parallel to the lapel edge.
Explanation:
The boutonniere should be worn on the left side of the lapel. In terms of formal wear etiquette, the boutonniere is traditionally worn on the left lapel of a suit or tuxedo jacket. The boutonniere should be pinned to the lapel with the flower stem placed through the lapel buttonhole if one is available. For a properly polished look, the boutonniere should sit just above the heart and parallel to the lapel edge, adding an elegant touch to the gentleman's attire.
